summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/cxgb3/iwch_qp.c
diff options
context:
space:
mode:
authorPeter Zijlstra <peterz@infradead.org>2016-11-14 17:29:48 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-14 11:37:18 +0100
commit2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e (patch)
tree4ccb975ac9142887b4e7e7bf1c0cca5c53d4cf99 /drivers/infiniband/hw/cxgb3/iwch_qp.c
parent1e24edca0557dba6486d39d3c24c288475432bcf (diff)
downloadblackbird-op-linux-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.tar.gz
blackbird-op-linux-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.zip
locking/atomic, kref: Add kref_read()
Since we need to change the implementation, stop exposing internals. Provide kref_read() to read the current reference count; typically used for debug messages. Kills two anti-patterns: atomic_read(&kref->refcount) kref->refcount.counter Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_qp.c')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_qp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index d939980a708f..a9194db7f9b8 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -961,7 +961,7 @@ int iwch_modify_qp(struct iwch_dev *rhp, struct iwch_qp *qhp,
case IWCH_QP_STATE_RTS:
switch (attrs->next_state) {
case IWCH_QP_STATE_CLOSING:
- BUG_ON(atomic_read(&qhp->ep->com.kref.refcount) < 2);
+ BUG_ON(kref_read(&qhp->ep->com.kref) < 2);
qhp->attr.state = IWCH_QP_STATE_CLOSING;
if (!internal) {
abort=0;
OpenPOWER on IntegriCloud